Daily Global Data Record of Landscape Freeze/Thaw Metadata

Variable Description
GRANULE LEVEL METADATA GRANULE LEVEL METADATA
CONVENTIONS CF-1.4
GRANULENAME Granule Specific (example: SSMI_37V_AM_FT_1988_day001)
Title An ESDR for Land Surface Freeze/Thaw State (NASA MEaSUREs)
History F/T ESDR created at University of Montana 2009-2010
Sponsor NASA MEaSUREs
Institution University of Montana, Flathead Lake Biological Station -- F/T team
References Developing a Global Data Record of Daily Landscape Freeze/Thaw Status using Satellite Microwave Remote sensing. IEEE Transactions on Geoscience and Remote Sensing. Kim,Y.,J.S. Kimball, K.C. MacDonald, and J.Glassy. 2010. (doi:10.1109/TGRS.2010.2070515)
Comment This NASA ESDR F/T Stage I release from SSMI data is formatted in HDF5 v1.8.x
ProjectID NASA Measures Freeze/Thaw ESDR Project
Producer TSG University of Montana SMAP Team
PointOfContact National Snow and Ice Data Center
Units F/T status classification code (dimensionless index)
TimeResolution daily
PixelResolution 25km
Instrument SSM/I
Channel 37
Polarization V
Overpass_Code Granule Specific (AM, PM, and CO)
Rank 2
Y_DIM 586
X_DIM 1383
Total_Pixels 810438
N_Channels 1
MapProjectionType rectangular
MapProjection EASE-GRID Polar-Cylindrical 25km
Granule_Year Granule Specific (example: 1988)
Granule_YearDay Granule Specific (example: 001)
GEOGRAPHIC_LATLON_NW 86.717,-179.74
GEOGRAPHIC_LATLON_NE 86.717,179.999
GEOGRAPHIC_LATLON_SE -84.24,179.999
GEOGRAPHIC_LATLON_SW -84.24,-179.74
Production_Datetime Granule Specific (example: 2010-07-02T15:43:01MST)
GridSpacing 25
GridSpacingUnits KM
RangeBeginningDate Granule Specific (example: 1988-01-01)
RangeBeginningTime Granule Specific (example: 00:00:01)
RangeEndingDate Granule Specific (example: 1988-01-01)
RangeEndingTime Granule Specific (example: 23:59:59)
CollectionDescription NASA Measures Freeze/Thaw Earth Science Data Record (ESDR)
AlgorithmDescriptor NASA Measures Freeze/Thaw ESDR daily global algorithm
NorthBoundingCoordinate 86.717
SouthBoundingCoordinate -84.24
EastBoundingCoordinate 179.999
WestBoundingCoordinate -179.74
GLOSSARY km Kilometers
GLOSSARY Rank Number of dimensions
GLOSSARY F/T Freeze/Thaw status
GLOSSARY Overpass code CO combined morning and afternoon overpass
Accuracy_DayOfYear Granule Specific (example: 001)
Accuracy_Daily_Metric Granule Specific (example: 56.855347)
REFERENCE_DOCUMENT_DOI 10.1109/TGRS.2010.2070515
GRANULE_UUID Granule Specific (example: fa170d84-a3f4-53ba-917e-7f617e1244d9)
PRODUCT_ESDR_VERSION Granule Specific (example: 1.0.2-2010-10-08T15:38:01MST)
FT_SSMI METADATA FT_SSMI METADATA
short_name FT
standard_name FT_SSMI
units Freeze-Thaw status classification code (dimensionless index)
FT Status code 0 Frozen (AM/PM frozen)
FT Status code 1 Thawed (AM/PM thawed)
FT Status code 2 Transitional (AM frozen and PM thawed)
FT Status code 3 Inverse Transitional (PM frozen and AM thawed)
FT Status code 254 Masked (permanent ice,non-vegetated and urban area)
FT Status code 255 100 Percent Open Water
minimum_value 0
maximum_value 255
coordinates cell_lat cell_lon
long_name Freeze Thaw generated from SSMI 37V
_lastModified Granule Specific (Example: 1988-01-01T23:59:59Z)
RANK 2
Y_DIM 586
X_DIM 1383
N_CELLS 810438
N_CHANNELS 1
Cell_Lat METADATA Cell_Lat METADATA
long_name Grid cell latitude
minimum_value -84.24
maximum_value 86.717
_CoordinateAxisType Lat
units degrees_north
_lastModified Granule Specific (Example: 1988-01-01T23:59:59Z)
X_DIM 1383
Y_DIM 586
N_CELLS 810438
Cell_Lon METADATA Cell_Lon METADATA
long_name Grid cell longitude
minimum_value -179.74
maximum_value 179.999
_CoordinateAxisType Lon
units degrees_east
_lastModified Granule Specific (Example: 1988-01-01T23:59:59Z)
X_DIM 1383
Y_DIM 586
N_CELLS 810438